Including Diverse Separating Or Treating Of Liquid Patents (Class 210/663)
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Apparatus to assist platelet manipulation to prevent and treat endovascular disease and its sequelae
Publication number: 20090090671Abstract: The utilization of electrical potential and currents, as well as magnetic fields and mixed-phase reactions to effect efficient separation of platelets from blood without initiating platelet activation.Type: ApplicationFiled: October 5, 2007Publication date: April 9, 2009Inventor: Mady Attila -
Publication number: 20090084729Abstract: Method for purifying liquids or fluids to eliminate harmful admixtures and microorganisms by using aerating and incidence of electric charges, wherein purified liquid undergoes gas-dynamic dispersion with the help of blast air passed through channels sloping below an angle of 30-50° according to a level of purified liquid, at a flow velocity of blast air of 10 to 100 m/s, at channel hydraulic resistance varying between 1.5 to 10 kPa and at specific consumption of dispersed water from 0.1 to 30 kg on 1 m3 of blast air. The blast air is previously preliminarily ionized in a non-homogenous electrostatic field of coronary discharges at a voltage between electrodes in a value range of from 3 kV to 10 millions V at corona current values between electrodes in a value range of from 10 to 1000 mA and at a specific power output of electrical discharges in a value range from 0.1 to 10 kWh on 1 m3 of conditioned liquid.Type: ApplicationFiled: May 25, 2005Publication date: April 2, 2009Inventors: Oleg Lysytchuk, Miroslave Spurny, Wladislav Rytschkow, Svetlana Rytschkowa
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Patent number: 7497877Abstract: An improved solvent cleaning process of cleaning a non-aqueous solvent used in a dry cleaning process for fabrics including consecutive wash cycles for washing respective fabrics batches, including a basic solvent refining cycle and a first advanced solvent refining cycle, the basic solvent refining cycle including a step of separating solvent into a first solvent fraction and a second solvent fraction which is less clean than the first fraction, wherein the basic and first advanced solvent refining cycles are independently effected when solvent to be cleaned fulfils a respective predetermined condition.Type: GrantFiled: December 11, 2003Date of Patent: March 3, 2009Assignee: Whirlpool CorporationInventors: Machial Goedhart, Joel Luckman, Hank Robert Reinhoudt, Jan Hendrik Verbeek, Vicki Lyn Wyatt-Smith, Brian W. May, Mark B. Kovich, Tremitchell Wright, Daniel C. Conrad
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Patent number: 7491335Abstract: The current invention is concerned with methods and compositions for the removal of arsenic contamination from water. A method for binding As to oxidized metal coated pumice and method for making the same are disclosed. Water filters comprising oxidized metal coated pumice, such as oxidized iron coated pumice, are also provided.Type: GrantFiled: May 13, 2006Date of Patent: February 17, 2009Assignee: The Board of Regents of the University of Texas SystemInventors: Pratap G. Reddy, Charles D. Turner
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Patent number: 7491336Abstract: In a process for treating effluent water, a stream of effluent water is fed to a porous ceramic media filled reactor. Organic and inorganic impurities are absorbed and/or oxidized from the effluent water into the media and/or off-gases. The remainder of the effluent water stream is dispensed from the reactor in an outlet stream suitable for direct discharge to the sea or for recycling without incurring the disadvantages of generating a solid sludge. The reactor includes a chamber containing activated media, such as pellets of porous ceramic material. The pellets are stored in a vertical stacks of sub chambers defined by horizontal perforated trays and/or in a horizontal chains of sub chambers defined by vertical perforated baffles.Type: GrantFiled: November 1, 2006Date of Patent: February 17, 2009Assignee: Rimkus Consulting Group, Inc.Inventors: Gary W. Markham, Harmon L. Kirkpatrick, Rick Guercio, Douglas E. Mast, Stanley C. Gustas, Jr.
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Publication number: 20090039000Abstract: The present invention is directed generally to devices and methods for controlling fluid flow in meso-scale fluidic components in a programmable manner. Specifically, the present invention is directed to an apparatus and method for placing two microfluidic components in fluid communication at an arbitrary position and time, both of which are externally defined. The inventive apparatus uses electromagnetic radiation to perforate a material layer having selected adsorptive properties. The perforation of the material layer allows the fluid communication between microfluidic components allowing volumetric quantitation of fluids. Using the perforation of the material functionality such as metering and multiplexing are achieved on a microscale. This functionality is achieved through basic operations, like dosimeters filling, dosimeters purging, dosimeters extraction, dosimeters ventilation and channels routing.Type: ApplicationFiled: June 5, 2006Publication date: February 12, 2009Applicant: SpinX, Inc.Inventors: Piero Zucchelli, Bart Van de Vyver
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Patent number: 7488423Abstract: Wastewater streams from semiconductor processing operations are treated to reduce the concentration therein of one or more metal species to a satisfactory level. The disclosed systems and technique utilize complexing ion exchange media to treat the wastewater streams having a significant concentration of oxidizing species.Type: GrantFiled: August 2, 2005Date of Patent: February 10, 2009Assignee: Siemens Water Technologies Holding Corp.Inventors: Michael W. Wismer, Richard Woodling, James C. Day
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Publication number: 20080296227Abstract: A method and apparatus for filtering a fluid is presented. In one embodiment, the apparatus converts contaminated water into water having a lower turbidity and bacterial contamination level than the contaminated water.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Inventors: Maximilian Gold, Evan A. Thomas
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Patent number: 7449117Abstract: A filtration unit that includes a casing that has a closed bottom and is immersed in a water storage tank (or water storage pond) into which raw water is introduced, the casing being composed of a introduction port which introduces the raw water in the water storage tank into the casing, an active carbon supply device which adds active carbon to the introduced raw water, an agitator which agitates the raw water inside the casing to which active carbon has been added, a filtration module which filters the raw water, a back flow preventing device which prevents the raw water inside the casing from flowing back into the introduction port and being discharged into the water storage tank, and a discharging device which discharges the raw water from the casing.Type: GrantFiled: September 30, 2004Date of Patent: November 11, 2008Assignee: Tsukishima Kikai Co., Ltd.Inventor: Tsuyoshi Nakayama
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Publication number: 20080264866Abstract: Systems, apparatus and methods for treating a contaminated fluid stream are provided. The systems may include a treatment column fluidly interconnected to a regeneration column, the regeneration column being adapted to continuously receive solid spent media from the treatment column to continuously regenerate such solid spent media.Type: ApplicationFiled: September 5, 2006Publication date: October 30, 2008Applicant: MATRIX PROCESS INTEGRATIONInventors: Harold Dennis Spriggs, Amal M. El-Halwagi
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Publication number: 20080210635Abstract: A method and system for removing from an aqueous system which is contaminated therewith: (1) mercury present as colloids, ions and/or organically bound compounds, and (2) hydrocarbons solubilized, dispersed, and/or emulsified in the said system. Pursuant to the invention the aqueous system to be treated (such as “produced water”) is passed successively through three filtration stages. The first filtration stage is provided with absorption media which effects reduction/removal of dispersed organically bound mercury species and of the dispersed and partially dissolved hydrocarbon phases, as well as of some colloidal mercury and other dissolved metallic species. The second filtration stage utilizes a salt modified reticulated granular filtration media for reduction/removal of slightly dissolved hydrocarbon phases, mercury in colloidal and ionic form and other dissolved metals.Type: ApplicationFiled: December 7, 2007Publication date: September 4, 2008Inventor: Hal Alper
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Patent number: 7404900Abstract: An ammonium removal system includes an ion-exchange medium, a brine source, and an electrophysical separation system. The ion-exchange medium may be used to remove ammonium from a waste stream. A brine may be flushed through the ion-exchange medium to remove the ammonium from the ion-exchange medium. The ammonium containing brine may be treated using an electrophysical separation system.Type: GrantFiled: August 30, 2007Date of Patent: July 29, 2008Assignee: New Earth Systems, Inc.Inventor: Kirk D. Bradley
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Patent number: 7404898Abstract: A method of producing lime water comprising deionising dilution water by membrane filtration, distillation or an ion exchange resin and adding silicate ions to the deionised water. Thereafter, the deionised water treated with the silicate ions is mixed with milk of lime to form lime water. In one embodiment, the milk of lime and dilution water are mixed in a saturator where the silicate ions are introduced.Type: GrantFiled: July 23, 2003Date of Patent: July 29, 2008Assignee: OTV SAInventors: Franck Clausse, Philippe Marteil, Germain LeBouc, Frederic LeFort
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Publication number: 20080149565Abstract: Provided is a process for adsorptive separation of p-xylene from an aromatic hydrocarbon mixture comprising other isomers of xylene, and a device used therein. More specifically, the present invention provides a separation process employing simulated moving bed (SMB) adsorptive chromatography, characterized by subjecting the extracts eluted from a plurality of adsorption chambers arranged in parallel, to a crystallizer for additional separation, thereby improving productivity, and a device used therein.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Applicant: SAMSUNG TOTAL PETROCHEMICALS, CO. LTD.Inventors: Jin-Suk Lee, Nam-Cheol Shin
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Patent number: 7368058Abstract: The present invention is a water processing method comprising the steps of separating boron-containing water in a reverse osmosis membrane module to provide a permeated water and subjecting a part of the obtained permeated water to boron removal using an adsorbent, wherein the water subjected to the boron removal is mixed with the water not subjected to the boron removal of the permeated water to provide a mixed water. The present invention provides economic water processing method and apparatus that remove the boron from boron-containing water.Type: GrantFiled: January 20, 2003Date of Patent: May 6, 2008Assignee: Toray Industries, Inc.Inventors: Tsuyoshi Nishikawa, Masahiro Kihara, Tamotsu Kitade, Wataru Sugiura
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Publication number: 20080099404Abstract: In a process for treating effluent water, a stream of effluent water is fed to a porous ceramic media filled reactor. Organic and inorganic impurities are absorbed and/or oxidized from the effluent water into the media and/or off-gases. The remainder of the effluent water stream is dispensed from the reactor in an outlet stream suitable for direct discharge to the sea or for recycling without incurring the disadvantages of generating a solid sludge. The reactor includes a chamber containing activated media, such as pellets of porous ceramic material. The pellets are stored in a vertical stacks of sub chambers defined by horizontal perforated trays and/or in a horizontal chains of sub chambers defined by vertical perforated baffles.Type: ApplicationFiled: November 1, 2006Publication date: May 1, 2008Applicant: Rimkus Consulting Group, Inc. Corporation of TexasInventors: Gary W. Markham, Harmon L. Kirkpatrick, Rick Guercio, Douglas E. Mast, Stanley C. Gustas
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Publication number: 20080067125Abstract: A method and apparatus for purifying water are provided. A feed water such as seawater can be fed to a filter such as a microporous or nanofiltration membrane to produce a permeate that can, in turn, be fed to an electrodeionization system to produce fresh water.Type: ApplicationFiled: September 20, 2006Publication date: March 20, 2008Inventors: Frederick C. Wilkins, Anil D. Jha, Gary C. Ganzi
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Patent number: 7344640Abstract: The apparatus and methods of the present invention enable efficient and appropriate treatment of Urban Water Runoff, so that the treated Urban water Runoff can be can be introduced into public waterways without contaminating such waterways. The system apparatus utilizes adsorptive Organoclay media, mechanical filtration and ultraviolet sterilization. The methods and apparatus of the present invention remove contaminants from Urban Water Runoff to a level which enable the resulting effluent to meet appropriate standards for introducing the treated Urban water Runoff in to public waterways. The method and apparatus of water treatment of the present invention does not utilize chlorine containing compounds which, when combined with organic compounds can produce THM's that can become problematic when re-introduced to the downstream environment. The systems of the present invention can be made sufficiently compact so as to enable their use in remote locations.Type: GrantFiled: September 2, 2005Date of Patent: March 18, 2008Assignee: Clear Creek Systems, Inc.Inventors: Guy Timothy Gannon, Joseph Charles Gannon
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Publication number: 20080061000Abstract: Novel ultrasonic treatment systems for separating compounds in an aqueous effluent and processes for using the ultrasonic treatment systems are disclosed. More particularly, the ultrasonic treatment systems use ultrasonic energy to energize adsorbent to provide efficient and effective removal of compounds from aqueous effluents, such as textile effluents.Type: ApplicationFiled: September 8, 2006Publication date: March 13, 2008Applicant: KIMBERLY CLARK WORLDWIDE, INC.Inventors: Robert Allen Janssen, Earl C. McCraw, Kimberlee Fay Thompson, John Gavin MacDonald, Thomas David Ehlert, Patrick Sean McNichols, John Glen Ahles, Paul Warren Rasmussen, Steve Roffers
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Patent number: 7332092Abstract: E and Z isomers of alkene alcohols and/or alkene alcohol derivatives are separated by substantially continuously contacting an ion exchange medium which is ion exchanged with silver and/or copper ions with the feed stream comprising the E and Z isomers of at least one alkene alcohol and/or at least one alkene alcohol derivative, then removing a product stream having a higher concentration of the E or Z isomer of at least one alkene alcohol or derivative of the alkene alcohol relative to the concentration of the E or Z isomer of the alkene alcohol or derivative of the alkene alcohol in the feed stream.Type: GrantFiled: March 7, 2007Date of Patent: February 19, 2008Assignees: Calgon Carbon Corporation, InnovaAroma SAInventors: Chen-Chou Chiang, Elad Shabtai
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Publication number: 20080023402Abstract: A filter for removing soluble and insoluble lead from water supplied by a water source includes a first filter medium configured to adsorb soluble lead to facilitate removing soluble lead from the water. A second filter medium is operatively coupled in series with the first filter medium and configured to facilitate physically removing insoluble colloidal lead from the water.Type: ApplicationFiled: December 13, 2006Publication date: January 31, 2008Inventors: James Rulon Young Rawson, William Jordan Heward, Shane Alan Gernand, Samuel Vincent DuPlessis
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Patent number: 7314547Abstract: A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a post treatment filter. The sediment prefilter preferably comprises a melt blown polypropylene filter; the separation filter preferably comprises a diatomaceous earth filter; and the post treatment filter preferably comprises a zeolite filter.Type: GrantFiled: July 25, 2006Date of Patent: January 1, 2008Inventors: David J. Stinson, David D. Douglas, Roy E. Seibert, Jose A. Villarreal
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Patent number: 7311837Abstract: In a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate, the same are mixed with water and the potassium hydrogentartrate is dissolved. The process is improved in that the suspension is decanted, the clarified liquid is refiltered, the filtrate is cooled to crystallization temperature under a vacuum, the potassium hydrogentartrate crystals formed are dissolved, the solution is subjected to a cation exchange, and the tartaric acid solution obtained is evaporated.Type: GrantFiled: February 26, 2004Date of Patent: December 25, 2007Assignee: Lurgi AGInventors: Dieter Stein, Rudolf Bonsch, Klaus Erb
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Patent number: 7306737Abstract: A method of inactivating pathogens contaminating water and sludge, such as sewage sludge from wastewater treatment plants by exposing the contaminated material to an intense alternating mechanical field, at sonic and/or ultrasonic frequencies, producing and sustaining cavitation along spiral-shaped like paths between two or more disks, where at least one disk rotates or more than one disk rotates or the disks counter-rotate at high RPM. Alkaline material may be added to enhance the inactivation of pathogens. Heavy metals, which may also be present in the sewage sludge may be extracted from the sludge by adsorption.Type: GrantFiled: April 10, 2002Date of Patent: December 11, 2007Inventor: Bertwin Langenecker
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Patent number: 7300743Abstract: This invention concerns radiation durable organic compositions which are well-suited for use in 157 nm lithography by virtue of their high transparency and excellent radiation durability, and to a process for the preparation thereof.Type: GrantFiled: August 1, 2003Date of Patent: November 27, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Roger Harquail French, David Joseph Jones, Robert Clayton Wheland
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Composite filter and method and apparatus for producing high purity water using the composite filter
Patent number: 7291266Abstract: To compose a composite filter for obtaining water having a high purity usable as water for life and water for medicine from water in which impurities are mixed. Furthermore, to compose an apparatus for obtaining water having a high purity using the filter. Moreover, to configure the apparatus so as to facilitate exchange of the filter. That is, water having a high purity can be obtained by allowing raw water to permeate through a composite filter which consists of a first layer 11 made of fibers, a second layer 12 made of ion exchange resin, a third layer 14 made of activated carbon and a fourth layer 16 made of an unwoven textile. These first layer, second layer, third layer and fourth layer are configured as separate independent filters respectively so that each filter can be exchanged independently. Furthermore, different kinds of filters can be combined dependently on purposes of use.Type: GrantFiled: December 18, 2002Date of Patent: November 6, 2007Assignee: Iida Kensetu Co., Ltd.Inventors: Seisuke Takashima, Ryousuke Murayama, Masatoshi Iida, Masayoshi Furuhashi -
Patent number: 7288498Abstract: The invention, in its various embodiments, relates to a medium for purifying fluids, particularly consumable fluids like air and water, by removing organic materials from the fluids by contacting the fluids with a combination of extremely small diameter transition metal oxide and an aluminosilicate having relatively large pores. In addition, contact of the fluids with the purification medium can also significantly reduce the level of microorganisms existing in the fluid, providing another purification benefit.Type: GrantFiled: October 8, 2003Date of Patent: October 30, 2007Assignee: Selecto, IncInventor: Ehud Levy
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Patent number: 7276167Abstract: When a raw water to be filtered c is fed from a raw water tank 11 reservoiring a raw water (water to be treated) to a membrane module by a raw water pump P1, an activated carbon raw material supplied from an activated carbon tank is milled together with water to be mixed by a wet milling device, and added and mixed into the raw water tank as an aqueous suspension containing activated carbon fine particles having an average particle size of 0.1 ?m to 10 ?m, thus producing the raw water to be filtered (activated carbon-containing water to be treated). The raw water to be filtered (activated carbon-containing water to be treated) is filtered by the membrane module at a subsequent step, thereby obtaining a purified water.Type: GrantFiled: January 16, 2004Date of Patent: October 2, 2007Assignee: NGK Insulators, Ltd.Inventors: Satoru Mima, Nobuhiro Aoki
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Patent number: 7253011Abstract: Provided is a fabrication method of a semiconductor integrated circuit device, which comprises disposing, in a ultrapure water preparing system, UF equipment having therein a UF module which has been manufactured by disposing, in a body thereof, a plurality of capillary hollow fiber membranes composed of a polysulfone membrane or polyimide membrane, bonding the plurality of hollow fiber membranes at end portions thereof by hot welding, and by this hot welding, simultaneously adhering the hollow fiber membranes to the body. Upon preparation of ultrapure water to be used for the fabrication of the semiconductor integrated circuit device, the present invention makes it possible to prevent run-off of ionized amine into the ultrapure water.Type: GrantFiled: February 22, 2005Date of Patent: August 7, 2007Assignees: Renesas Technology Corp., Hitachi Hokkai Semiconductor, Ltd.Inventors: Osamu Takahashi, Kunio Ogasawara
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Publication number: 20070158270Abstract: Simultaneous synthesis and purification of a fatty acid monoester biodiesel fuel from a triacylglycerol feedstock is described. In an exemplary method, the triacylglycerol feedstock is continuously contacted with a catalytic chromatographic bed comprising a first (solid phase) basic catalyst through a first port of a simulated moving bed chromatographic apparatus. A monohydric alcohol and optional second (mobile phase) basic catalyst is continuously contacted with the catalytic chromatographic bed through a second port and pumped in a first direction toward the triacylglycerol feedstock to contact the triacylglycerol in a reaction zone of the catalytic chromatographic bed where the fatty acid monoester and glycerol coproduct are formed. The fatty acid monoester is removed from the reaction zone through a product port of the simulated moving bed apparatus.Type: ApplicationFiled: June 8, 2006Publication date: July 12, 2007Inventors: Doug Geier, John G. Soper
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Patent number: 7195923Abstract: The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the glycosylated protein, or the glycoprotein. The method incorporates lateral flow test strip or vertical flow test strip devices having negatively charged carboxyl or carboxylate groups and hydroxyboryl groups immobilized and interspersed on a solid support matrix. The solid support matrix may include derivatives of cellulose (e.g., carboxy cellulose) derivatized with carboxylic acid (e.g., carboxylate, carboxyl) groups and hydroxyboryl compounds including phenylboronic acid (e.g., phenylborate), aminophenylboronic acid, boric acid (e.g., borate), or other boronic acid (e.g., boronate) compounds. The present invention is usefi.il for monitoring glycation or glycosylation of hemoglobin or albumin for monitoring glycemic control (e.g., glycemia in diabetes).Type: GrantFiled: January 31, 2002Date of Patent: March 27, 2007Assignee: Scripps Laboratories, Inc.Inventors: Ralph P. McCroskey, Cameron E. Melton
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Patent number: 7172701Abstract: A method of treating water including mixing the water with an inorganic powder reagent for reducing the content of organic matter. The water, after being mixed with the inorganic powder reagent, is subjected to a membrane separation step that produces blow off products that are then separated into two fractions: a first fraction containing a majority portion of the powder reagent in a first stream of water, and a second fraction containing a majority portion of inorganic matter not absorbed on the inorganic powder reagent rejected by the membrane separation step in a second stream of water.Type: GrantFiled: November 21, 2003Date of Patent: February 6, 2007Assignee: OTV SA S.A.Inventors: Abdelkader Gaid, Mickael Uyttewaal, Annie Tazi-Pain
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Patent number: 7144510Abstract: A method for treating a fluid by providing a raw fluid to a process tank. The raw fluid may be water having varying degrees of contamination or another type of fluid. The method further consists of adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture. After the fluid has been sufficiently contacted with the ion exchange resin, treated fluid is removed from the process tank through a membrane filter located within the process tank. The method is completed by regenerating the ion exchange resin within the same process tank.Type: GrantFiled: August 22, 2005Date of Patent: December 5, 2006Assignee: CH2M Hill, Inc.Inventors: Paul Mueller, Anthony G Myers
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Patent number: 7132052Abstract: System and method for purifying and recycling spent brine in a water softener are provided. The system may be made up of a cation exchange resin tank fluidly coupled for passing spent brine comprising monovalent and divalent ions. A fluid mixer valve is coupled to the resin tank and to a water tank to dilute the spent brine to a desired concentration of a regenerant salt, e.g., NaCl. An ion-separation device is fluidly coupled to the fluid mixer valve to receive the diluted spent brine and separate the diluted spent brine into first and second streams. The first of the streams comprises monovalent ions and the second of the streams comprises divalent ions.Type: GrantFiled: December 11, 2003Date of Patent: November 7, 2006Assignee: General Electric CompanyInventors: James Rulon Young Rawson, Raul Eduardo Ayala
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Patent number: 7122122Abstract: A cellulose/silica composite useful as a filter material is highly selective towards a solute that has been molecularly imprinted upon an inorganic gel coating formed on the cellulose. The filter material provides dual filtering functionality, as both a selective molecular sieve and as a particulate filter. A unique method for making the filter material is also set forth that imparts these attributes and performance capabilities.Type: GrantFiled: July 22, 2003Date of Patent: October 17, 2006Assignee: Kraft Foods Holdings, Inc.Inventors: Manuel Marquez-Sanchez, Gustavo Larsen, Ahmad Akashe, David Vu, Rajinder S. Gill
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Patent number: 7112453Abstract: This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by desorption spectrometry. The methods are useful in biology and medicine, including clinical diagnostics and drug discovery.Type: GrantFiled: August 5, 2002Date of Patent: September 26, 2006Assignee: Ciphergen Biosystems, Inc.Inventors: T. William Hutchens, Tai-Tung Yip
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Patent number: 7112282Abstract: A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a post treatment filter. The sediment prefilter preferably comprises a melt blown polypropylene filter; the separation filter preferably comprises a diatomaceous earth filter; and the post treatment filter preferably comprises a zeolite filter.Type: GrantFiled: August 5, 2005Date of Patent: September 26, 2006Inventors: David J. Stinson, David A. Douglas, Roy E. Seibert, Jose A. Villarreal
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Patent number: 7087159Abstract: A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a post treatment filter. The sediment prefilter preferably comprises a melt blown polypropylene filter; the separation filter preferably comprises a diatomaceous earth filter; and the post treatment filter preferably comprises a zeolite filter.Type: GrantFiled: July 7, 2005Date of Patent: August 8, 2006Inventors: David J. Stinson, David A. Douglas, Roy E. Seibert, Jose A. Villarreal
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Patent number: 7033498Abstract: Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis systems using the sorbent cartridges of the present invention are further described.Type: GrantFiled: November 28, 2001Date of Patent: April 25, 2006Assignee: Renal Solutions, Inc.Inventor: Raymond J. Wong
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Patent number: 7025884Abstract: A method for treating a fluid by providing raw fluid to a process tank, adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture, removing treated fluid from the process tank through a membrane filter located within the process tank, and regenerating the ion exchange resin within the process tank. The method may be set up as a batch process or as a continuous process using a magnetic ion exchange resin and continuous withdrawal of the magnetic ion exchange resin from the process tank by use of a magnetic separator. The method may also consist of reusing the regenerant in multiple regeneration steps and periodically filtering the regenerant to restore its regenerative properties. Alternatively, an upflow bed of ion exchange resin may be used to treat the raw fluid before membrane filtration.Type: GrantFiled: December 3, 2003Date of Patent: April 11, 2006Assignee: CH2M Hill, Inc.Inventors: Paul Mueller, Anthony G. Myers
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Patent number: 7014771Abstract: The present invention relates to a process for the preparation of arsenic free water and an apparatus therefor. The present invention also relates to a porous ceramic useful for pressure filtration in order to produce arsenic free water. The present invention particularly relates to a process for preparing arsenic free (<10 ppb) water from arsenic contaminated ground water and apparatus therefor.Type: GrantFiled: March 29, 2002Date of Patent: March 21, 2006Assignee: Council of Scientific and Industrial ResearchInventors: Sibdas Bandyopadhyay, Dipali Kundu, Somendra Nath Roy, Bishnupada Ghosh, Himadri Sekhar Maiti
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Patent number: 6998052Abstract: A multicolumn selectivity inversion generator separation method has been developed in which a desired daughter radionuclide is selectively extracted from a solution of the parent and daughter radionuclides by a primary separation column, stripped, and passed through a second guard column that retains any parent or other daughter impurities, while the desired daughter elutes. This separation method minimizes the effects of radiation damage to the separation material and permits the reliable production of radionuclides of high chemical and radionuclidic purity for use in diagnostic or therapeutic nuclear medicine.Type: GrantFiled: April 9, 2003Date of Patent: February 14, 2006Assignee: PG Research FoundationInventors: E. Philip Horwitz, Andrew H. Bond
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Patent number: 6987183Abstract: The present invention is directed to a method comprising a multistep process for recovering one or more monosaccharides from a solution containing at least two monosaccharides selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof by using chromatographic separation comprising at least one step, where a weak acid cation exchange resin is used for the chromatographic separation.Type: GrantFiled: September 28, 2001Date of Patent: January 17, 2006Assignee: Danisco Sweeteners OyInventors: Heikki Heikkila, Juho Jumppanen, Ve{grave over (s)}a Kurula, Vili Ravanko, Tiina Tervala, Nina Mayra
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Patent number: 6984327Abstract: An apparatus and method for separating heavy isotopes of hydrogen from contaminated water. The apparatus includes a treatment chamber with an elongated hollow core fiber (HCF) extending within the chamber. A reservoir holds contaminated water mixed with beads formed of an exchange resin, the mixture of contaminated water and beads forming a flowable slurry. The slurry is continuously circulated through the hollow core fiber and the reservoir preferably by a pulsating peristaltic pump. The beads absorb a portion of the heavy isotopes from the slurry by exchange with waters of hydration of the beads while the hollow core fiber allows permeation of only light water from said slurry outwardly through the HCF wall as a permeate.Type: GrantFiled: November 23, 2004Date of Patent: January 10, 2006Inventor: James A. Patterson
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Patent number: 6969466Abstract: Highly pure aqueous solution of ammonia, typically electronics grade for use in semiconductor manufacturing is prepared by passing a solution of ammonia through at least one cation exchange resin bed to remove substantially all of the cation contaminants; subsequently passing the cation exchange resin effluent through at least one anion exchange resin; and recovering an aqueous solution of ammonia product substantially free of ionic contaminants.Type: GrantFiled: December 24, 2002Date of Patent: November 29, 2005Assignee: Puritan Products, Inc.Inventor: Thomas C. Starner
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Patent number: 6960301Abstract: A compact portable modular wastewater treatment system which integrates several processing technologies to provide a substantially purified water source. A wastewater stream is sent through an initial filtration step. The filtered wastewater is then subjected to electrocoagulation and then further filtered. The resulting stream containing substantially only organics is then treated in an advanced oxidation process which can include passing an electrical current through the water during the oxidation process. The partially treated water is then passed through ion-exchange columns to polish ammonium and other contaminants. The ion-exchange columns are cycled through regeneration cycles to provide continuous ion-exchange medium. The ammonium rich brine solution used in regeneration is subjected to an ammonium destruct process and then reused in regenerating ion-exchange columns.Type: GrantFiled: March 14, 2003Date of Patent: November 1, 2005Assignee: New Earth Systems, Inc.Inventor: Kirk D. Bradley
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Patent number: 6942803Abstract: A process is disclosed for purifying an aqueous feed stream comprising a product organic acid, such as lactic acid, and a strong contaminant, such as pyruvic acid or oxalic acid. The molar concentration of the product organic acid in the feed stream typically is at least 20 times greater than the molar concentration of the strong contaminant. The aqueous feed stream is contacted with a first immiscible basic extractant that has at least a 3-fold greater affinity for the strong contaminant than for the product organic acid. The majority of the strong contaminant and some product organic acid become complexed with the first immiscible basic extractant. The complexed first immiscible basic extractant is separated from the aqueous stream, thereby producing a first effluent stream that comprises product organic acid and that has a greater ratio of molar product organic acid to molar strong contaminant than the aqueous feed stream did.Type: GrantFiled: November 15, 2002Date of Patent: September 13, 2005Assignee: A.E. Staley Manufacturing Co.Inventors: Michael Charles Milner Cockrem, Istvan Kovacs, Idris Mohamednur, David Heidel, Avraham M. Baniel
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Patent number: 6929748Abstract: A method of water purification including the steps of passing source water through at least one reverse osmosis unit to produce a product water and reject water, directing the product water from a reverse osmosis unit into the dilution stream of a continuous electrodeionization unit, directing the reject water from the first pass reverse osmosis unit through a softening unit to produce softening unit output water with fewer hardness elements than the reject water from the first pass reverse osmosis unit, directing the softening unit output water into a concentrate stream of the continuous electrodeionization unit, and wherein the continuous electrodeionization unit further purifies the water from the dilution stream to produce purified water.Type: GrantFiled: March 28, 2003Date of Patent: August 16, 2005Assignee: Chemitreat PTE LTDInventors: Dey Avijit, Thomas Gareth Hugh
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Patent number: 6900060Abstract: A method for analyzing a plurality of amino acids in a fluid sample by a user is provided comprising the steps of introducing the sample into a buffer solution, passing the sample in the buffer solution through a separation column and setting a lithium ion concentration in the buffer to no more than 0.3 mols/L up to a time before ?-aminoisobutyric acid (?-AiBA) is eluted.Type: GrantFiled: June 13, 2001Date of Patent: May 31, 2005Assignee: Hitachi, Ltd.Inventors: Yoshio Fujii, Masahito Ito, Kimiyoshi Koda
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Patent number: 6881345Abstract: A fluid change kit for disposing of fluids, such as automotive fluids, includes a container at least partially filled with an absorbent. The fluid change kit typically includes a biodegradable box and an absorbent selected from peat moss and coconut coir for absorbing the fluid. A liner may also be included. By absorbing the fluid, the fluid change kit can be disposed of in a conventional landfill.Type: GrantFiled: October 14, 2002Date of Patent: April 19, 2005Inventor: Malcolm MacQuoid